Wrench



J. w; SHOO'K.

WRENCH APPLICATION FILED MAY 27. 1921;

rammed Apr. 18, 1922.

2 SHEETS-SHEET I- efl 14467004.

WITH E5555.

1. w. suoox. V

' WRENCH. V APPLICATION HUS!) MAY 27, I921- 1,41 3,495. atented Apr. 18,1922.

2 SHEETS-SHEET 2- W iii;

BY ATTORNEY WITNESSEB: V

JACOB w. snooze, or MILTON, PENNSYLVANIA.

' WRENCH.

1,413,495, Specification of Letters Patent. I r3111. 1%)22;

7, Application filed May 27, 19 21. Seriai No. 473,111.

T all whom it may concern:

Be it known thatI, JACOB W. SHOCK, a

" citizen of the United States, residing at Milton, in the county ofNorthumberland and State of Pennsylvania, have invented'new and usefulImprovements in Wrenches, '01" which the following is a specification.

7 My present invention hasreference to improvements n wrenches.

My object is to produce a w rench in which the handle is provided with ahollow head through which is guided a provided with a toothed shank thatisengaged by a worm, while also received in the head is the shank ofasecond jaw firmly supported by. contacting engagement with certain ofthe walls provided in the slot and having means engaged by the shankofthe first mentioned;

jaw, whereby,' when the first mentioned jaw is moved longitudinally,thesecond men tioned jaw will be moved at a" less rate of speed right;angularly with respect to the; first mentionedjaw, so that the handlemay 7 beheld at a determined angle with respect to'the object to beengaged between the jaws,

and the said 'jaws properly guided by con tacting engagement with thesupport for the object to engagingfpositionwith said object and thenecessity of tilting or other wise manipulating the handle of the wrenchfor causing a proper engagement of the jaws with the object will beentirely overbetween the jaws, whereby one jaw is caused a to moveangularly with respect to the other jaw and whereby the engaging facesofrthe H I threads 13- m the widened. end oi the slot jaws are at alltimes retained parallel.

' It is a still further object to produce a wrench provided with movablejawswhich are so constructed and arranged as'to be reinforced to adegree Wl'llCll will render the same as strong and effective as a wrenchthat has rigid ]2LWS.

The forego1ng,'and other objects which "will appear as the nature of theinvention is better understood, may be accomplished by a construction,combination and 'operative association of parts,'such as is disclosed bythe drawings which accompany and which form part of this specification.

In the drawings a Figure 1 is an elevation of a wrench in accordancewith this invention.

A still further object is to. produce a.} SVeFSe opening 9therethrough'. wrench in which two movable jaws are em- I ployed,coengaging means being provided Figure v2 is a similar view with th'sideplate of the head removed 7 a Figure 3 is av sectional view onthe line33 of Figure l. i I

Figure is a sectional view on the line H of Figure 1.

Figure 5 is a side elevation ofthe head with the side platemem'oved, andthe jaws and operating'worm being]ikewise' removed. 7

Fi'gurefiisan edge view of thesame.

providedwith the toothed shank.

-F1gure 8 isa similar view of the second l g V Referring now to thedrawings in detail,

ithe'numeral l designates'the; handle of the wrench which is formed atone-end with an enlargement that provides the same with what' I 'willterm a head and" which is designated by; the numeral 21'" The outer wallof the head; 2 is arranged-f angularly with respect to the handle", and'is, for a deteri jihined length depressed to'provide a pocket 3. Thepocket enters from the end andthe rearangle end 7 of the head 2 is aslot8, while below the s1ot. 'andcommunicating with the inner wall thereof,the head has-a The opening 9 is designed to receive therein a worm screw10, the shaft therefor being-indicated by 'thc'numeral 11, and being inthe nature of a: pin that: has its outen'end enlarged; and threaded asat '12:to engage through which the pin passes: The threaded endiof .the'pinis also her-ted, as attl i, whereby the same maybe removed.

' As two -movablejaws 'areiemployed, I

will, :for the sake of: convenience, refer to one'as-thei outer aw, andthe other as the inner jaw. The outer. jaw-is indicatedby fthe numeral15 an'dis provided with a right angular shank 16. ,The' shank has atoothed 3 edge 17 which' is engaged by the worm screw 10. "*The'shank-isof aithicknessaapproxi Figure 7 is a perspective'view-of the awmatelyequaling one-half of the thickness; 7

of the jaw 15, one of the'side walls of the said shank being flush withone of the sides of the jaw, and its opposite side is provided with anangularly arranged groove 18;

the head by a removable plate 25.

The inner jaw is indicated by the numeral 19 and is also provided with adepending portion forming a shank 20. The shank, for'the major portionof its length is of a width approximately equalling one-half of thethickness of the jaw 19, one of the sides of the shank being flush withone of the sides of the jaw and its second side is provided with anangularly disposed tongue 21 that is designed. to be received in theangle groove 18 in the shank 16 of the jaw 15. The shank 20 of the jaw19 has the side thereof flush with the side of the jaw reduced, as at22, the said reduced portion being received in the slot 6, and theshoulder 23 provided at the inner end of the said reduced portion beingdesigned to rest on the shoulder 2st formed at the inner end of the slot6, the said shoulder 24: being disposed a slight distance below the wall5 of the pocket 3. The inner straight edge of the shank 20, and aportion of the head of the jaw 19 is designed for contacting engagementwith the wall 1 of the pocket 3, and whereby the jaw 19 is effectivelybraced.

The shanks of the jaws are enclosed in The straight side of the shank 20is in contacting engagement with the inner side wall of the pocket, andas stated, the reduced portion 22 of the said shank which is received inthe slot 6, contacts with both the end and side walls of the said slot.The shanks of the jaws are enclosed in the pocket by a removable plate26, and this plate contacting with the outer straight face of the jaw 15and its shank 16 holds the straight side 'of the jaw in contactingengagement with the inner wall of the pocket 3, and also causes thereduced face of the shank to properly engage with the reduced face ofthe shank 20 of the jaw 19.

The turning of the screw will 'I110\'8 the shank 16 longitudinallythrough the pocket, bringing the jaw 15 toward or away from the jaw 19.The movement of the jaw 15,

incident to the tongue and groove engagement between the shanks of therespective jaws, will also cause the jaw 19 to travel angularly withrespect to the travel of the jaw 15, and as a consequence the handle maybe arranged at a determined angle when the jaws rest on a surface to theopposite sides of a nut or other article to be engaged, so that it isnot necessary for the operator to manipulate the handle to bring thejaws to a proper position for engagement with the article.

It is believed that the foregoing description, when taken in connectionwith the to all such changes therefrom as fall within the scope of whatis claimed.

Having described the invention, 1 claim 1. In a wrench, a handle havinga head, jaws having angle shanks arranged in lapping relation andmovable in the head, an element on one of the shanks, means on the othershank receiving said element, means carried by the head and engaging thelast mentioned shank for imparting a longitudinal movement thereto, andby virtue of such movement to cause the'element on the first mentionedshank to travel in the means on the last mentioned shank for moving thefirst mentioned shank.

2. Tna wrench, a handle having a slotted head, a jaw having an angularlytoothed shank arranged in the head, a worm screw revoluble in the headand in engagement with the teeth of the shank, a second jaw having ashank arranged right angularly with respect to the shank of the firstmentionedjaw, and coengaging means between the shanks of the respectivejaws whereby the last mentioned jaw is moved right angularly withrespect to the first mentioned jaw when the said first mentioned jaw ismoved by the operation of the worm screw.

8. In a wrench, a handle having an; angle head at one end thereof whichis provided with a pocket that opens at its endand at its outer edge,said head having right angular slots which communicate with the pocketat the rear thereof, and the inner wall of both of the slots providingshoulders, said head having a transverse opening therethrough whichcommunicates with the longitudinal slot, a worm screw ournaled in saidopening, a jaw having an integral right angular shank of a lessthickness than that of the jaw, said shank having an angle slot on theinner reduced face thereof and having teeth which are engaged by theworm screw, a second aw having a reduced shank which rests against theinner wall of the pocket and which has a reduced extension received inthe second mentioned slot, and the shank of the second mentioned jawhaving an angle tongue which'is received in the angle slot of the shankof the first mentioned jaw, all as and for the purpose set forth.

In testimony whereof I affix my signature.

JACOB W. SHOOK.

